SoundGuy wrote:
... the higher one lifts the tongue jack the higher one also lifts the rear of the truck and much greater is the force that's transferred to the truck's front axle. :(
mkirsch wrote:
Replace "much greater" with "hardly any greater" and you will be right.
With the weight bars engaged, you will actually be REDUCING the amount of weight on the front axle as you raise the jack, because you are unloading the weight bars.
The slight change in angle of the truck from jacking the rear up with the tongue jack will not appreciably increase the weight on the front axle. How would you change a rear tire on the truck otherwise?
Think about it - when you're hitching up and raising the rear of the truck that's
before the spring bars are even mounted ... all force is sustained by the truck. My trailer is parked on a significantly sloped driveway so when I hitch up the rear of the truck has to be raised
substantially in order to mount those spring bars. And when I might ever change a tire I'm not raising the entire rear (or front) of the truck, just one side, sufficient for the tire to clear the ground - BIG difference.
